MUR120S R5G

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The MUR120S R5G is a high voltage rectifier diode initially designed to work in rectification, free wheeling and voltage clamping applications. Its low forward voltage drop and high reverse avalanche characteristics, make this component suitable for all kinds of power electronics, lighting and inverter applications. This diode features a 1200v maximum peak reverse voltage (VRWM) and a 5A maximum average rectified current (Io).

Characteristics

The MUR120S R5G is designed to have a low forward voltage drop, typically 0.4v for the given Io. Its thermal stability is also assured with a fast switching time of 100ns, allowing the device to be used in high speed circuits. In addition its surface mount package gives a minimum height of 0.6mm and its high reliability also makes it suitable for all kinds of high voltage/high current applications.

The maximum repetitive peak reverse voltage of the MUR120S R5G is 1200v, with a maximum peak forward current of 1A and a junction temperature rating of 175°C. Its low reverse current of 10µA ensures the diode operates with improved efficiency and reduced noise. This diode also features low stored charge which helps to minimize reverse recovery time.

Application Fields and Working Principle

The MUR120S R5G is mainly used in rectification, free wheeling and voltage clamping applications. This component exhibits high rectification efficiency, low forward voltage drop and thermal stability during operation. The reverse voltage affects the device’s characteristic, thus the working principle of this component involves utilizing it to rectify dc current from the input source. The diode works by allowing current to flow from the anode to the cathode and blocks current from flowing in the opposite direction.

Since the forward voltage drop of the MUR120S R5G is low, this device is suitable for use in power converters and controllers, such as power inverters, battery chargers and UPS systems. The rectifier can also be used as a freewheel diode, which helps to reduce power dissipation in power cycles. Its temperature rating makes it suitable for high temperature operating conditions and it is also widely used in lighting applications, where the diode not only rectifies alternating current into direct current, but also works to filter out high frequency noise.

The MUR120S R5G is also widely used in motor control circuits, where it acts as a rectifier diode, to control the speed of the motor. The rectifier also helps to provide smooth start-up and stop a motor, by providing a current path for the motor’s inductive loads. In addition, these devices can be used as voltage clamps, to ensure that the output voltage does not exceed a predetermined level.

In conclusion, the MUR120S R5G is an ideal rectifier diode for a variety of power electronics and lighting applications. Its low forward voltage drop and high reverse avalanche characteristics, make it suitable for use in high voltage/current conditions. This device is mainly used for rectification, free wheeling and voltage clamping applications, to provide smooth start-ups and stops in motors, filter out high frequency noise and reduce power dissipation in power cycles. Whereas, its low reverse current ensures improved efficiency and reduced noise.

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